1. The effect of three years of tillage and poultry manure application on soil and plant nutrient composition, growth and yield of cocoyam;Adekiya;Exp. Agric.,2016
2. Impact of poultry manure and NPK fertilizer on soil physical properties and growth and yield of carrot;Agbede;J. Hortic. Res.,2017
3. Evaluation of the fertility status of selected soils for crop production in five ecological zones of Nigeria;Akinrinde;Proceedings of the 26th Annual Conference of Soil Science Society of Nigeria,2000
4. Effects of biochars produced from different feedstocks on soil properties and sunflower growth;Alburquerque;J. Plant Nutr. Soil Sci.,2014
5. Official Methods of Analysis of the Association of Official Analytical Chemists;AOAC,2006